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From "Feak, Todd" <Todd.F...@smss.sony.com>
Subject RE: Using query functions against a "type" field
Date Mon, 22 Dec 2008 18:56:41 GMT
If I do that, how do I turn off the boosting for some queries but not
others?

This needs to be done at query time, I believe.

-Todd Feak

-----Original Message-----
From: Walter Underwood [mailto:wunderwood@netflix.com] 
Sent: Monday, December 22, 2008 10:33 AM
To: solr-user@lucene.apache.org
Subject: Re: Using query functions against a "type" field

Try document boost at index time. --wunder

On 12/22/08 9:28 AM, "Feak, Todd" <Todd.Feak@smss.sony.com> wrote:

> I would like to use a query function to boost documents of a certain
> "type". I realize that I can use a boost query for this, but in
> analyzing the scoring it doesn't seem as predictable as the query
> functions.
> 
>  
> 
> So, imagine I have a field called "foo". Foo contains a value that
> indicates what type of document this is. For now there are only
document
> types of "BAR" and "BAZ". I would like documents of type BAR to be
> boosted much more strongly then documents of type BAZ. As far as I can
> all of the query functions seem to work with fields that contain
> numbers. The only exception being the ord() functions, but those don't
> provide the stability I would like, as I can always introduce a new
> document type down the road and risk screwing up my results.
> 
>  
> 
> Can this be done with function queries?
> 
>  
> 
> As a follow up, how difficult would it be for me to write my own
> function (and plug it into Solr) that allowed me to return a 1.0 or
0.0
> if a field had a particular string value in it? A function that would
> look something like "fieldEq(foo,BAR)"
> 
>  
> 
> -Todd Feak
> 



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